Error when creating SQL Credential in SSMS 19

Hi all - 

I had great success with Woody0 's instructions up above. As they state, you cannot create the credential in the new task dialog box or wizard.

After following those instructions, create the plan *with* the credential you need, setting the URLs, etc. After the task is created, click on the task and open the Properties panel  and remove the value for "CredentialName":

"Sql Credential:" in the task box should be empty.

Save the plan and it will execute! Hope this helps.